class Lato::ActiveStorageCleanerJob

def perform(params = {})
  update_operation_percentage(0)
  # delete all active storage blobs that are not attached to any record with more than 12 hours of life
  query = ActiveStorage::Blob.where('active_storage_blobs.created_at < ?', 12.hours.ago)
  totals = query.count
  runned = 0
  query.find_in_batches do |blobs|
    blobs.each(&:purge_later)
    runned += blobs.size
    update_operation_percentage((runned.to_f / totals * 100).round)
  end
  # delete all empty folders in active storage local service (if exists)
  if ActiveStorage::Blob.service.class.to_s == 'ActiveStorage::Service::DiskService'
    storage_folder = ActiveStorage::Blob.service.root
    return unless File.directory?(storage_folder)
    Dir.foreach(storage_folder) do |folder|
      next if folder == '.' || folder == '..'
      folder_path = File.join(ActiveStorage::Blob.service.root, folder)
      FileUtils.rm_rf(folder_path) if File.directory?(folder_path) && Dir.empty?(folder_path)
    end
  end
end